(WXYZ) - The Detroit Lions rookie linebacker Kyle Van Noy has officially been placed on injured reserve with a designation to return.

The team's second-round pick underwent surgery before the final preseason game against the Buffalo Bills to repair a core muscle injury. Van Noy does not know when the injury occurred, but also missed the team's third preseason game against the Jacksonville Jaguars.

The designation will force Van Noy to sit out the first eight weeks of the season. The team has a BYE on Week 9, so Van Noy will be eligible to play against the Miami Dolphins on November 9.

He can start practicing with the team after six weeks. In a corresponding move, the Lions signed DE/OLB Darryl Tapp. Tapp was among the last cuts on Saturday, when rosters had to be trimmed to 53 players.

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